A washing machine needs hot and cold water and a drain. You'll need to install washing machine valves, which look like outdoor hose bibs but point straight down. The washer drain hose hooks to a sink or a standpipe. The drain for either of these must slope down at a rate of 1/4 inch per running foot.
Many washing machines are self-leveling. Grab the machine by its control panel at the top rear, pull forward to slightly tilt the machine, and let it drop back solidly on all four feet. Adjust the front legs to make sure the machine is level in both directions.
About half a day
Screwdriver, groove-joint pliers, propane torch, hacksaw, tubing cutter
Working with copper and PVC pipe
Locate supply and drain lines
Utility sink, washing machine, solder, flux, PVC primer and glue, trap, pipe, fittings