The metal strips from the sender to the pump were originally covered in plastic; obviously, the coating deteriorated to the point where it fell off. You can replace them with wires, but it would have to be the right kind of wire with a fuel-resistant coating. Also, it goes without saying that the connections and terminals would have to me soldered. As far as sourcing the right kind of wire, almost every car on the road today has an in-tank pump; it shouldn't be hard to find a defective sender at an auto repair facility or junkyard to grab the wires from.
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(firstname.lastname@example.org)(email@example.com 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD ex.cab (work truck/parts hauler)
04 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
00 Saturn SL1- older son's ride
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....