think of international First Class , same of what you would have in say Continental when travelling from the US to non BusinessFirst destinations
the one thing to keep in mind is that once they are done with the service they normally disappear until 1 hour or so before arrival. I thought they would be a little bit more into offering drinks /etc, you have to push the button to request additional beer after they are done with the service
note to moderators: since the OP is asking specifically about COPA, this probably belongs in the Continental OnePass forum