Yes. Even though they do now coat copper items with laquer, kitchen items still have to be maintained. And hammered copper would be even harder to maintain. She would have to pay attention to all the dimples. If you do decide on the dimple one, read the reviews and see how many five star ones there are compared to the lower ones. If there are more lesser number ones than the five stars, then I would pass it by.
What I have in mind is a metal one like you presently have but white with yellow flowers.
If there is a Bed, Bath and Beyond near you, the staff there can help. Go to their site and see what they have first so you know what you want when you walk into the store. If you find one, you can call the store and make sure it is in stock before you waste your gas.