Suppose the water pipes leading into your house are made of lead, while the rest of the plumbing in your house is iron. To eliminate the possibility of lead poisoning, you call a plumber to replace the lead pipes. They quote you a very low price if they can use up existing supply of copper pipe to do the job. Do you accept their proposal? Why or why not? EFe2+/Fe = 0.45 V, ECu2+/Cu = 0.34 V, EPb2+/pb = 0.13v