Galvanized steel sheet metal is fastened together with copper rivets. The galvanized steel sheet has an area of 1.2 ft2 and the rivets have a total exposed area of 2 in.2. The environment contains moisture and some salt.
(a) Which metal will corrode?
(b) If half as many rivets are used, what effect would this have on the total rate of corrosion?
(c) How could corrosion be reduced?