Probably not too much. Anemones are pretty sensative to a torn foot and being moved from their tank. If all else is well lights, water quality etc it might recover but, there isn't very much you can do for it. In the future I'd reccomend a couple of things not trying to flam just help. 1st set up a hospital tank and treat sick fish there they can take the move a lot better than your inverts. 2nd if for some reason you do have to remove an anemone use a credit card to gently slide under it's foot that should make it seperate from the rock or glass. I would however, never attempt to move an anemone except under the most dire of circumstances and they really don' t do well in a non-matured tank. One more little side issue you'll probably have a real hard time getting all the copper out of your tank. I'd do a 100% water change and then wait about a week a test for copper it has a tendancy to get caught up in live rock,sand etc. Very small amounts of it will kill inverts.
hth
chris