Felivecal Wall Mounted Wooden Cat Feeding Shelf - Cat Floating Suspension Shelves w/2 Elevated Cat Bowls, Premium Cat Furniture for Indoor Cats - Modern Cat Perch for Eating, Playing, Sleeping, Wood

Q: Whats the weight limit for the cat to be on it?

I don’t know, but I think the description on Amazon may answer that. It is very solid and probably can take a lot more weight than I think. My cat is 10 pounds.

Q: How big is a Platform they a stand on not including where you put the bowls??

I don’t have the measurements with me, but it is plenty of room for my cat, she is long and weighs about 10 pounds. A huge fat cat will not do well on it.