Ответ на "wii u ac power cable damaged and copper showing,can this be fixed?"if it’s torn near the power brick, you can definitely cut the damaged part and solder undamaged section to the power brick. It requires attention, but is definitely easier than most repairs appear of this website. I do it all the time for laptop power bricks. If the cable insulation is torn near the power jack, it’s a harder repair but is still possible.