Has a Copa America game ever ended 9-2?
Yes. Copa America has seen a final score of 9-2 2 times. It first happened on February 21, 1945, when Brazil beat Ecuador, and most recently on February 21, 1945, when Brazil beat Ecuador.
That makes 9-2 the 26th most common final score out of 36 that have ever occurred in Copa America. One point away, 10-2 has happened never and 9-3 has happened never.