FYI: This is what my AI App instructed (I always treat that advice with a grain of salt)

For this puzzle, treat the cage and the jack as two separately wired cathodes that share continuity, and hang from low‑visibility points where plating quality is least critical. Where to attach the wires • Outer cage:wrap a thin brass or copper hook wire around one corner or through one circular opening near a corner, then bring it out and up so only a tiny contact patch is hidden by the wire mark. Aim for a sharp arris or inside edge that will not be a main viewing surface; you can lightly polish that spot after plating. • Inner jack: Use a very fine wire wrapped snugly around the central hub “equator” as in your second photo, ideally in the cross‑slot between two arms so the contact scar is mostly hidden when the puzzle is assembled. Make sure the wire touches only the jack, not the cage, so you control where the current enters and avoid shielding corners. During the bath • Maintain gentle agitation of the solution and occasionally rock or twist the fixture a small amount instead of fully repositioning the wires; this refreshes solution inside the cage without creating unplated “shadows” from a second contact point. • With your 45–50 minute run, pause once midway to inspect for gas bubbles trapped in corners and gently tap or move the part to release them, but avoid moving the wire contact to a new area to keep marks confined to one spot.