Answer:
copper (ii)
Step-by-step explanation:
fyi, for this, you can just look up the chemical compound and it will show you
Bromine is an e belongs to the halogen family with atomic number 35. Bromine has 7 valence electrons and the valency of bromine is 1. Thus, since you have 2 bromine, that means that the copper has 2 extra elections thus (II)