What are copy edits?

I've heard the term copy edits before, but never really knew what it meant. Here's what copy edits mean when you are working with 4RV Publishing.
When the designer lays out the manuscript, the text does what it wants. It sometimes leaves things called "orphans". These are lonely little words left at the ends of paragraphs. It has never occurred to me until now to notice these when I read books.

Another thing that happens is names get hyphenated at the ends of lines. So the designer must go...