The word(s) "copper" appears 2 time(s) in 2 verse(s) in Quran in Saheeh International translation.

(1) Bring me sheets of iron" - until, when he had leveled [them] between the two mountain walls, he said, "Blow [with bellows]," until when he had made it [like] fire, he said, "Bring me, that I may pour over it molten copper."

(2) And to Solomon [We subjected] the wind - its morning [journey was that of] a month - and its afternoon [journey was that of] a month, and We made flow for him a spring of [liquid] copper. And among the jinn were those who worked for him by the permission of his Lord. And whoever deviated among them from Our command - We will make him taste of the punishment of the Blaze.