Assume that the Copenhagen interpretation holds. Imagine a Universe, a nearly identical copy of our Universe, that contains only our Earth and me (i.e., I'm the lone conscious being and the lone self-conscious being on Earth and in the Universe, though plants, trash, mountains, etc., still exist on Earth).
As I wander about Earth's surface, I come across different bound states of particles: trees, plants, etc., with x, y, etc., definite aspects. For example, a tree I am beholding has, I determine, a mass of 1,349,080 grams (let's imagine that I can precisely determine the tree's mass in grams somehow).
Is it correct to interpret the Copenhagen interpretation as saying that the mass in grams of the tree was simply indeterminate before I saw the tree and measured its mass?
If not, why not?