You are choosing snowshoes in advance of a winter hike. You are considering a pair with a listed mass of 2.0 kg for a pair, with each snowshoe's sole being 45 cm long and 20. cm across. You want to avoid putting more than 6.9 kPa of pressure onto the snow as you walk, because more than that risks the snow collapsing, making it harder to walk. What is the most total mass of hiker and gear that this pair of snowshoes could support while the hiker walks?