Copy and paste in a modeless editor was invented by Larry Tesler at XEROX Parc for the Smalltalk-76 programming environment, in 1973-76. In Smalltalk, when you selected some text you had a large number of commands you could apply to the selection; 'again', 'copy', 'cut', 'paste', 'doit', 'compile', 'undo', 'cancel', 'align'. So it less likely that the command you would want to use 80% of the time would be 'copy'.
So no, not invented by Apple :-) I guess Apple, Commodore (Amiga) and Microsoft all extended this behaviour for all kinds of data throughout the OS, instead of only text.
The entire foundation of the GUI as we know it is invented by Xerox Parc. Xerox invented the laser printer but required a system to do "WYSIWYG" to get the maximum out of the printed. And so the idea was born to use the desktop metaphor. It even had some kind of protected memory system.http://en.wikipedia.org/wiki/Xerox_Alto