The word "clipboard" does not have any clear translation in Persian. and I don't think than Using "حافظه" for it is actually a good idea. "حافظه" means "memory" in Persian, which is completely different than "clipboard".
I have noticed in other apps that they usually do not translate "clipboard" nor they use "کلیپ بورد"; They simply say that something is copied. I think This would make more sense in here, too.

As it’s mentioned in other comment [حافظه] is a word for memory not clipboard. Clipboard stores data for a short time so it’s temporary. We can use the word "موقت" to reach this meaning