the copacabana palace is clearly visible on this wikimapia and, located at avenida atlântica, 1702, copacabana,  it  can be found on this google map.

bar do copa (inside the copacabana palace hotel, entrance through the pérgula restaurant), avenida atlântica, 1702, copacabana, tel. 21 2548.7070 - here is the website, contact email, and map. 

published by sindicato Estadual dos Guias de Turismo do Rio de Janeiro - sindegtur, the article on this link provides a wealth of detailed information on the copacabana palace.