IOWA CITY — In response to widespread demand for more mental health services across campus, the University of Iowa is planning to hire eight new counselors — including at least one who will be stationed in an east-side residence hall. The additions will bolster the UI Counseling Service’s existing team of 12 by 67 percent and move the institution out of last place in mental health staffing among Big Ten universities, UI Counseling Service Director Barry Schreier said. But the hiring process is expected to take more than a year — with four new counselors expected on campus by fall 2016 and another four by fall 2017. “We want to be deliberate and careful and talk about space and decide who we want to hire,” Schreier said, adding that he will be looking for prospects with specific skills in demand at Iowa.