hector13

hello i have an iron wire that coated with copper . is there any way to extract copper from the wire fast? like electrolysis? i try 2 way: 1- putting the wire in hcl. its work but very slow. 2- electrolysis with a battery core in (-) and the wire in + .but both iron and copper was dissolved. how can i dissolve iron and keep copper!!?? electrolysis way is better if possible! thanks and sorry for bad english!