That
s dead true when were talking about the physical/material realm, but with God, we
re talking about spirit ONLY. [A reply to your analogy of three grapes at post #33.] The Divine Essence is spirit "only" ie no material makeup, and therefore doesnt occupy space.
The same applies to the angels, good and fallen, and to the immortal human soul.
No. [A reply to your claim that we believe in 3 Gods.]
The Father is spirit and knows HImself totally in eternity. He possesses the totality of the Godhead. Everything that the Father is is contained in His Self-knowledge. The Father`s Self-knowledge is the Son. Because of the last sentence plus 1, the Son possesses the totality of the Godhead. The Son is generated by the Father in eternity.
There
s total, eternal Self-giving Love from the Father to the Son; and theres total, eternal Self-giving Love from the Son to the Father. Everything that the Father is and everything that the Son is is in that Love. That Love is the Holy Spirit; and because of the preceding sentence, He possesses the totality of the Godhead.
Keep in mind that the physical/material is NOT involved. We`re not trying to say that three individuals occupy the same physical space…or anything remotely like that. The Incarnation is a separate topic.
No one Person (also called “Principle”) can exist without the other Two, and no Two can exist without the other One.
There`s one divine Will. Total unity.
This will help to explain the Mystery of the Blessed Trinity:
www.katapi.org.uk/TandS/Contents.html
[This leads to a far deeper “analysis” which would have taken up far too many posts, plus a few days of laborious typing.

]
***It
s hard-going, but, as far as it goes, its the Truth; and it`s the Truth that matters. ***
Saint Thomas Aquinas went well into it.
The fact that the Mystery can never be fully understood doesn`t give anyone the right to water it down to make his concept of God more palatable. That does violence to the Truth, and leads deeper into heresy.
They can
t be infinite and eternal AND created. [A reply to your statement that Theyre infinite and eterrnal.]