Strong’s Greek
G5471 — chalkeus
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
χαλκεύς
chalkeus — pronounced khalk-yooce'
from 5475; a copper-worker or brazier:--coppersmith. see GREEK for 5475
1 occurrence in the KJV.
2 Timothy 4:14
Alexander the coppersmith did me much evil: the Lord reward him according to his works: