A hydrogen-fueling station planned in Carson City drew plenty of media attention last week, but developer H2 Technologies Group Inc. of Sparks thinks the station can be profitable even if it never delivers a bit of hydrogen for vehicle fuel.How?The electrolyzer technology at the station will separate water into its component elements, hydrogen and oxygen. While hydrogen-fueled vehicles are all the rage as a method of reducing tailpipe emissions, H2 Technologies is contracting with a supplier of industrial gases to sell oxygen the waste product at wholesale for medical and industrial uses."That secondary market makes the station profitable from day …