I'm not sure the above is not correct. I don't think any 1994 was "sprayed by hand". In fact, I don't think the paint shop in the Bowling Green plant had the ability to paint an entire car by hand. The problem with the copper, was that the partially automated process used back in the late C4 era to apply the base coat/clear coat paint system turned out to be unable to apply the copper metallic paint consistently on all all the panels. GM was not able to solve the problem, so the color was discontinued soon after SOP for MY94.
This has made Copper 94s, especially the few which had reasonably consistent paint quality, highly disireable collector items.
Lastly, I don't think Copper Metallic was "translucent", at least not in the sense of some of the later extra cost exterior colors of the C5 and C6 eras. I'm pretty sure there was a base coat of Copper metallic and then a clear coat.